SCREW (P/N nas7503-4) - New Surplus

The NAS7503-4 is a 100° flat countersunk screw with close-tolerance UNJF threads per AS8879 specifications. Manufactured from steel, this fastener creates flush joints in aerospace and airframe assemblies where precise hole fit and alignment are critical. The countersunk head sits flush with panel surfaces, maintaining aerodynamic contour and structural integrity.

Install with matching UNJF nuts and torque according to aircraft maintenance manual specifications. Commonly used in airframe panel fastening and structural applications requiring high-precision aerospace-grade hardware.

What is the SCREW (P/N nas7503-4)?

The NAS7503-4 is a 100° flat countersunk screw with close-tolerance UNJF threads per AS8879 specifications. Manufactured from steel, this fastener creates flush joints in aerospace and airframe assemblies where precise hole fit and alignment are critical.

Does the nas7503-4 meet AN/MS/NAS aviation specifications?

Aircraft hardware is manufactured to military and aviation specifications. The SCREW conforms to its applicable AN (Air Force-Navy), MS (Military Standard), or NAS (National Aerospace Standard) specification. Contact us for specific specification details.

What material is the nas7503-4 manufactured from?

Aviation hardware is available in various materials including cadmium-plated steel, stainless steel, aluminum alloy, and titanium depending on the application. Contact us for material certification and specifications for the nas7503-4.

Can I order the nas7503-4 in custom quantities?

Yes, we sell hardware in various quantities from single units to bulk lots. The SCREW is available in: New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.